|
US2008205966A1
|
|
Writing aid device and method
|
|
US2005268107A1
|
|
System and method for authenticating users using two or more factors
|
|
WO2004000159A2
|
|
Metal back or mesh crosslinking
|
|
US4686971A
|
|
Method and apparatus for extraction of prostheses
|
|
US4514865A
|
|
Stemmed femoral component for the human hip
|
|
US4406023A
|
|
Stemmed femoral component for the human hip
|
|
US3921296A
|
|
Dental drill swivel
|
|
US3521359A
|
|
Dental drill
|
|
US3445934A
|
|
Dental operatory and valve used therein
|
|
US3344525A
|
|
Precision dental paralleling process and apparatus
|
|
US3231977A
|
|
Precision dental paralleling process
|
|
US2901286A
|
|
Mechanically operable cover and rack for trucks and similar vehicles
|
|
US2756456A
|
|
Crumb cleaner
|
|
US1418565A
|
|
Differential drive mechanism
|
|
CA143393A
|
|
Weed puller
|
|
US1020094A
|
|
Weed-puller.
|
|
CA130091A
|
|
Caliper
|
|
US978582A
|
|
Portable track.
|
|
US955398A
|
|
Portable-truck.
|
|
US954390A
|
|
Shoe-fastener.
|
