TOY HILL-CLIMBING SYSTEM
PRODGER B,US, BOSLEY D,US, MERINO D,US, BALES J,US, RUPPEL K,US, SCHLAU F,US
Year of Publication 02.10.1973
Get full text
Year of Publication 02.10.1973
Patent
DELAYED STARTING INDICATOR APPARATUS AND TOY STARTING SYSTEM
PRODGER B,US, TUCKER J,US, BOSLEY D,US, BALES J,US, RUPPEL K,US, SUMMERFIELD W,US
Year of Publication 02.01.1973
Get full text
Year of Publication 02.01.1973
Patent
HYDRAULIC HAMMER
EROFEEV LEV V,SU, DMITREVICH YURIJ V,SU, RUPPEL ALEKSANDR ,SU, SERGEEV VLADIMIR A,SU
Year of Publication 30.11.1980
Get full text
Year of Publication 30.11.1980
Patent