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发明名称
摘要
申请公布号
US2733565(A)
申请公布日期
1956.02.07
申请号
USD2733565
申请日期
申请人
发明人
分类号
A01D34/02;A01D34/135
主分类号
A01D34/02
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代理人
主权项
地址
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Space frame for building - comprises aligned arches between which sheets of plastics are secured
Cleaning stock with electric arc - while opposite side is on cooled support to prevent overheating
Convertible domestic billiard table - has table top which is smooth on one side and has billiard top on other side, with two cross beams
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Reinforced sheathing for extended seismic probe segments - to increase sensitivity by minimising spurious noise
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Measurement of narrow gap between two hot metal workpieces - by determn. of capacitance between surface of one piece and metal sensor located on other piece
Seal for offshore rig leg - has conical reinforced sleeve of varying flexibility pressed against leg by water pressure
Applicator for contact lenses - has pads to keep eyelid open with two circles and sleeve to apply lens and suction pad applies or removes it
Constant current supply for domestic cooker temp. measurement - uses single controlled current transistor feeding switched parallel array of transistors driving sensors under microprocessor control
Holder for window shutter - comprises U=shaped trip which pivots about support to retain edge of shutter between arms
Retractable cover for swimming pools - has flexible sheet guided by slots in pool edge and retracted by winding reel
Chimney stack for building - includes pivot to be adjusted to suit slope of roof