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Class Information
Number: 310/50
Name: Electrical generator or motor structure > Dynamoelectric > Rotary > Portable or hand tool
Description: Subject matter in which the dynamoelectric device is arranged to be transported or operated while held in the hand.


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
4476602 Portable electric scrubber Oct. 16, 1984
4462467 Percussion drill machine Jul. 31, 1984
4453032 Elastic electrical insulating material cover for the cable in the handle of a manually operated electrical appliance Jun. 5, 1984
4447749 Cordless electric device having contact increasing means May. 8, 1984
4442366 Switch-plug module for portable electric tool Apr. 10, 1984
4422343 Kitchen appliance with interchangable attachments Dec. 27, 1983
4420702 Resilient motor mounting for an electric dry shaver or the like Dec. 13, 1983
4413199 Electrical tooth cleaner apparatus Nov. 1, 1983
4385276 Mounting of semiconductor sensing means for an electromagnetic tachometer in a portable electric tool May. 24, 1983
4370579 Power tool having a printed circuit board Jan. 25, 1983
4366403 Brush assembly and mounting arrangement for a portable tool Dec. 28, 1982
4355977 Cordless handpiece for dental treatment Oct. 26, 1982
4349758 Modular hand mixer Sep. 14, 1982
4348603 Printed-circuit board and trigger-switch arrangement for a portable electric tool Sep. 7, 1982
4347450 Portable power tool Aug. 31, 1982
4342931 Brush-shifting and trigger-switch arrangements for a portable tool Aug. 3, 1982
4342929 Electric motor wherein low temperature polymeric housing supports heat dissipating portions through heat resisting polymeric bridging member Aug. 3, 1982
4334163 DC Electric motors Jun. 8, 1982
4314170 Hand power tool control unit Feb. 2, 1982
4309631 Kitchen mixer having means to instantaneously increase speed when desired Jan. 5, 1982
4299004 Powered hand tool for use in household cleaning operations Nov. 10, 1981
4292571 Control device for controlling the rotational speed of a portable power tool Sep. 29, 1981
4290464 Holder for portable electric cutting instrument Sep. 22, 1981
4260916 Electric motor driven hand-held drill Apr. 7, 1981
4241297 Double-pole trigger speed control switch Dec. 23, 1980
D257349 Hand held tape winder Oct. 14, 1980
4220901 Half and full wave energizing system for permanent magnet D.C. motors Sep. 2, 1980
4219749 Housing for power tools Aug. 26, 1980
4219747 Mechanical apparatus for activating no load current limiting circuits in electric motors Aug. 26, 1980
4213471 Manicuring unit Jul. 22, 1980
4210832 Electric shavers Jul. 1, 1980
4190781 Brush system for a portable electric tool Feb. 26, 1980
4188682 Automobile cleaning and waxing tool Feb. 19, 1980
4179644 Power tool switch including speed control Dec. 18, 1979
4179632 Spindle locking mechanism for a rotary power device Dec. 18, 1979
4175247 Electric motor control for conductor wrapping tool Nov. 20, 1979
4164670 Sealed motor mount for hand held device Aug. 14, 1979
4158246 Portable cordless scrubber Jun. 19, 1979
4156468 Housing for electric tools May. 29, 1979
4097705 Quick lock-release mechanism for a trigger switch Jun. 27, 1978
4097703 Trigger switch and lock mechanism therefore Jun. 27, 1978
4097704 Industrial reversing speed control trigger switch with snap-in modules Jun. 27, 1978
4095072 Industrial speed control trigger switch with integral reversing switch Jun. 13, 1978
4092581 Rechargeable battery-operated shaver with printed circuit module mounting brush means, batteries and switch means May. 30, 1978
4090098 Arrangement for electrically connecting wire coils of an electric machine to an electric circuit May. 16, 1978
4084123 Cordless electric devices having rechargeable battery pack(s) Apr. 11, 1978
4081704 Powered hand-held tool with unitary sub-assembly mounted by the tool housing sections Mar. 28, 1978
4078589 Battery driven screwdriver Mar. 14, 1978
4071789 Multi-purpose kitchen appliance Jan. 31, 1978
4063600 Power tool safety mechanism Dec. 20, 1977

1 2 3 4 5 6 7


 
 
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