Inventor
TIETJENS EDUARD W
NL19 patents
Patents
19 patentsUS4707923ANov 24, 1987
Shaving apparatus
PHILIPS CORP26 citations92
US4151645AMay 1, 1979
Dry-shaving apparatus with hair-pulling lead cutters
PHILIPS CORP37 citations92
US4310968AJan 19, 1982
Shaving apparatus
PHILIPS CORP47 citations87
US4998352AMar 12, 1991
Cutting unit for a shaving apparatus
PHILIPS CORP19 citations82
US4882840ANov 28, 1989
Dry-shaving apparatus
PHILIPS CORP21 citations82
US4192065AMar 11, 1980
Shaving apparatus
PHILIPS CORP24 citations82
US4283849AAug 18, 1981
Cutting unit for a dry-shaving apparatus
PHILIPS CORP20 citations81
US4240199ADec 23, 1980
Shaving apparatus
PHILIPS CORP23 citations81
US4510687AApr 16, 1985
Shaving apparatus
PHILIPS CORP23 citations78
US4894912AJan 23, 1990
Shaving apparatus
PHILIPS CORP18 citations73
US4802281AFeb 7, 1989
Dry shaving apparatus
PHILIPS CORP10 citations73
US4272884AJun 16, 1981
Shaving apparatus
PHILIPS CORP6 citations73
US4811483AMar 14, 1989
Dry-shaving apparatus with self adjusting blades
PHILIPS CORP17 citations72
US4811484AMar 14, 1989
Dry-shaving apparatus
PHILIPS CORP11 citations71
US4424628AJan 10, 1984
Shaving apparatus
PHILIPS CORP8 citations71
US4275497AJun 30, 1981
Shaving apparatus
PHILIPS CORP18 citations71
US4261101AApr 14, 1981
Shaving apparatus with lead cutter
PHILIPS CORP12 citations71
US4577408AMar 25, 1986
Hair-cutting device
PHILIPS CORP6 citations62
US4347662ASep 7, 1982
Shaving apparatus
PHILIPS CORP6 citations62