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经营范围
发明名称
Automatic shotgun choke operated by gases of explosion
摘要
申请公布号
US2765564(A)
申请公布日期
1956.10.09
申请号
US19530399914
申请日期
1953.12.23
申请人
JARVIS MANUFACTURING, INC.
发明人
SCHROEDER ARLO E.
分类号
F41A21/40
主分类号
F41A21/40
代理机构
代理人
主权项
地址
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