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  • 1.
    [发明专利]JP19740113795 _ JIDOSHA KIKI KK 1974年10月04日
  • 2.
    [发明专利]JP19740153234U _ 1974年12月19日
  • 3.
    [发明专利]JP19740054210 _ 1974年05月15日
  • 4.
    [发明专利]FR19740032073 _ CREMONESE OTTO 1974年09月23日
  • 5.
    [发明专利]FR19740039761 _ BOUIGES DIDIER 1974年12月05日
  • [发明专利]DE19742405003 _ FISCHER,ALBERT GEORGE,PROF.DR. 1974年02月02日
    Pulsating nuclear reaction rocket motor has hot, magnetically self-compressing max.-press. plasma channels produced by rapid periodic capacitor discharges through a mass of molted 6Li-deuterotritide. In the channels, primary neutrons initiate fission-...
  • [发明专利]DE19742434785 _ ATLAS COPCO AB, NACKA (SCHWEDEN) 1974年07月19日
  • [发明专利]US19740503057 _ FA. INGENIEUR GUNTER KLEMM SPEZIALUNTERNEHMEN FUR BOHRTECHNIK 1974年09月04日
    This disclosure relates to a percussion tool which includes a housing having a chamber reciprocally mounting a piston with first and second pressure ducts at opposite ends of the latter and a control duct therebetween as well as a return duct in fluid...
  • [发明专利]US19740447171 _ JOY MANUFACTURING COMPANY 1974年03月01日
    A fluid drive device for high torque, low speed applications.
  • [发明专利]US19740430961 _ THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY 1974年01月04日
    A temperature responsive drive unit comprising clutch plates keyed to the drive and driven members. A thermal power means is carried by one of the members to force the clutch plates together as the ambient temperature is increased beyond a specified v...
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