|
US3128759A
|
|
Tooth vitality determining device
|
|
US3131883A
|
|
Hose retrieving device
|
|
US3130741A
|
|
Liquid purging systems
|
|
US3059970A
|
|
Chairs having tilting backs
|
|
US3036863A
|
|
Chair assemblies with rockable backs
|
|
US2980170A
|
|
Rotating chair arm structure
|
|
US2879594A
|
|
High speed handpiece
|
|
US2879595A
|
|
Ball bearing contra-angle handpiece
|
|
US2813337A
|
|
Holder for rotatable tools
|
|
US2767470A
|
|
Amalgam carriers
|
|
GB677115A
|
|
Improvements in valves
|
|
GB677038A
|
|
Improvements in high pressure valves
|
|
GB676057A
|
|
Improvements in high pressure valves with gland packings
|
|
GB677859A
|
|
Improvements in high pressure valves
|
|
GB676056A
|
|
Improvements in high pressure valves
|
|
US2674435A
|
|
Tube compressor
|
|
US2817545A
|
|
Valve stem seal
|
|
US2679378A
|
|
High-pressure valve
|
|
US2653383A
|
|
Dental engine handpiece
|
|
US2701118A
|
|
High-pressure valve
|
