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School desk
申请公布号:
US2168910(A)
申请号:
US19360068582
申请日期:
1936.03.13
申请公布日期:
1939.08.08
申请人:
AMERICAN SEATING COMPANY
发明人:
MERRILL RALPH K.
分类号:
A47B39/02
主分类号:
A47B39/02
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Rullstol med inställbar övre och nedre ram
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