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Patent Number Title Of Patent Date Issued
4889492 High capacitance trench capacitor and well extension process Dec. 26, 1989
4889491 Dental throat shield Dec. 26, 1989
4889490 Dental mask Dec. 26, 1989
4889489 Device with spindle and grinding disk, particulary for dentists, and method for the manufacture ... Dec. 26, 1989
4889488 Compact apparatus for the support of suspended power driven instruments, in particular for denta... Dec. 26, 1989
4889487 Endodontic files Dec. 26, 1989
4889486 Device for mounting jaw casts in an articulator Dec. 26, 1989
4889485 Orthodontic apparatus for attachment to a tooth Dec. 26, 1989
4889484 Portable soil decontamination kiln Dec. 26, 1989
4889483 Temperature controlled probe assembly Dec. 26, 1989
4889482 Valve actuator for pocket lighter Dec. 26, 1989
4889481 Dual structure infrared surface combustion burner Dec. 26, 1989
4889480 Slide core mold and injection molding Dec. 26, 1989
4889479 Changing device for changing the plastic material to be supplied to a horizontal injecting unit ... Dec. 26, 1989
4889478 Apparatus for operating an injection compression molding machine Dec. 26, 1989
4889477 Extruder head Dec. 26, 1989
4889476 Melt blowing die and air manifold frame assembly for manufacture of carbon fibers Dec. 26, 1989
4889475 Twin rotary compressor with suction accumulator Dec. 26, 1989
4889474 Air conditioning system with variable capacity compressor Dec. 26, 1989
4889473 Production plunger Dec. 26, 1989
4889472 Air speed control valve air pressure drive hydraulic fluid pump Dec. 26, 1989
4889471 Mechanism for prevention of burning of bearing portions in a hermetic type scroll compressor Dec. 26, 1989
4889470 Compressor diaphragm assembly Dec. 26, 1989
4889469 A nozzle guide vane structure for a gas turbine engine Dec. 26, 1989
4889468 Submerged type pump Dec. 26, 1989
4889467 Tooling assembly for rod material Dec. 26, 1989
4889466 Control device for a power shovel Dec. 26, 1989
4889465 Self-loading sailboat trailer Dec. 26, 1989
4889464 Movable tipping frame for hoist trucks Dec. 26, 1989
4889463 Slip sheet removal apparatus Dec. 26, 1989
4889462 Loading apparatus for emptying containers into a common receptacle Dec. 26, 1989
4889461 Wrapping apparatus for a book cover production machine Dec. 26, 1989
4889460 Thread cleaning nut Dec. 26, 1989
4889459 Further improved overhead sheet-installation support tool Dec. 26, 1989
4889458 Lock nut assemblies Dec. 26, 1989
4889457 Load indicator Dec. 26, 1989
4889456 Drilling tool for drilling in solid metal material, in particular for drilling in plate stacks Dec. 26, 1989
4889455 Drill Dec. 26, 1989
4889454 Portable power tool for milling tube ends Dec. 26, 1989
4889453 Method of forming a tapped hole Dec. 26, 1989
4889452 Vented product pump and air filter arrangement Dec. 26, 1989
4889451 Driven pile with transverse broadening in situ Dec. 26, 1989
4889450 Guidance and protection system for the laying of pipes Dec. 26, 1989
4889449 Slipliner grouting method and system Dec. 26, 1989
4889448 Tunnel construction Dec. 26, 1989
4889447 Marine pollution containment device Dec. 26, 1989
4889446 Erosion control foundation mat and method Dec. 26, 1989
4889445 Expansion joint for settable compositions Dec. 26, 1989
4889444 Method and apparatus for construction of artificial roads Dec. 26, 1989
4889443 Connection arrangement Dec. 26, 1989
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