|
US3538686A
|
|
Self-sealing and self-holding filter frame
|
|
US3568412A
|
|
Filter assembly
|
|
US3474599A
|
|
Filter assemblage for purifying a particle-laden gaseous flow
|
|
US3443366A
|
|
Filter assemblage
|
|
US1590201A
|
|
Rotatable cutting tool
|
|
US1554287A
|
|
Screw extractor
|
|
US1486193A
|
|
Appliance for cutting and drilling piston heads
|
|
US1449908A
|
|
Electric valve grinder
|
|
US1426658A
|
|
Bench block
|
|
US1221912A
|
|
Tire-plug.
|
|
US1221479A
|
|
Tire-plug.
|
|
US1215719A
|
|
Tire-plug.
|
|
US1215582A
|
|
Tire-plug.
|
|
US1184136A
|
|
Tire-plug.
|
|
GB190718950A
|
|
Improvements in the Manufacture of Snap-hooks.
|
|
US765324A
|
|
Puncture-closer.
|
|
US736025A
|
|
Detachable valve and implement for attaching same.
|
|
US696230A
|
|
Faucet connection.
|
|
CA900372A
|
|
Self-sealing and self-holding filter frame
|
|
CA662076A
|
|
Electrostatic gas filters
|
