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Invention Grant
US1621240A Vermifuge and insecticide 失效
杀虫剂和杀虫剂

  • Patent Title: Vermifuge and insecticide
  • Patent Title (中): 杀虫剂和杀虫剂
  • Application No.: US63235823
    Application Date: 1923-04-16
  • Publication No.: US1621240A
    Publication Date: 1927-03-15
  • Inventor: DENNIS WILLIAM J
  • Applicant: DENNIS WILLIAM J
  • Assignee: William J Dennis
  • Current Assignee: William J Dennis
  • Priority: US63235823 1923-04-16
Vermifuge and insecticide
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