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Class Information
Number: 226/50
Name: Advancing material of indeterminate length > Selectively reversible material mover > By optional moving means
Description: Device provided with at least two driven material-engaging advancing elements, only one or only another of which is selected for advancing engagement with the material at any one time.










Patents under this class:

Patent Number Title Of Patent Date Issued
6959848 Tailgate sealing gasket Nov. 1, 2005
5765741 Switching device for an auto-reverse deck of a magnetic tape cassette apparatus Jun. 16, 1998
5320039 Web engagement system for an off-reel printing press Jun. 14, 1994
4103521 Apparatus for successively processing continuous textile fabric Aug. 1, 1978
4031944 Device for opening and closing of cord operated closures Jun. 28, 1977
3976236 Reversible tape drive apparatus Aug. 24, 1976
3942698 Helical-scan video tape recorder having a tape-loosening mechanism Mar. 9, 1976
3934774 Dual speed tape drive system for an endless loop dictating and transcribing system Jan. 27, 1976











 
 
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