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quickly  ascertain  our  opinion  free  whether  an 
invention  is  probably  patentable.  Communica- 
tions strictly  confidential.  HANDBOOK  on  Patents 
sent  free.  Oldest  agency  for  securing  patents. 
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special  notice,  without  charge,  in  the 
Scientific  American. 
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Branch  Office,  695  F St.,  Washington,  D.  C.  , 
Garden  and  Farm  Tools 
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