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Forced draft grate for fireplaces
申请号	US44848065	申请日	1965-04-15	公开(公告)号	US3269383A	公开(公告)日	1966-08-30
申请人	MAASBERG WILLIAM A;			发明人	MAASBERG WILLIAM A;
摘要
权利要求	1. A FIREPLACE GRATE COMPRISING A TRANSVERSELY MANIFOLD, A PAIR OF ANDIRON TUBES MOUNTED ON AND PROJECTING BACK FROM THE MANIFOLD ADJACENT THE ENDS THEREOF, SAID TUBES BEING OPEN AT THEIR FORWARD ENDS TO THE MANIFOLD, CLOSED AT THEIR NEAR ENDS, AND PROVIDED WITH SPACED RELATIVELY SMALL OPENINGS INTERMEDIATE SUCH ENDS; AND MEANS TO
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