The MacLean - Bull Trade

By email and snailmail - September 1999

Bull to MacLean:

Left: Marked 15 TOOLS IN ONE and PAT DEC 9, 1930. Patent by Nathan Jenkins

A Walker corkscrew with short barrel handle, wire cap lifter in handle and speed worm.

MacLean to Bull

Charles Griswold's July 22, 1884 American patent.

What do you think of this trade? Email your opinion to or leave your opinion in the guestbook. Refer to MACLEAN-BULL TRADE and indicate A, B or C.

Send comments if you like. Results and comments will be posted soon.

  • 1. MacLean took advantage of Bull
  • 2. Bull took advantage of MacLean
  • 3. It is an even trade


1. MacLean Advantage
2. Bull Advantage
Bob Roger
3. Even Trade

Bull finally wins one! But Ron is happy too, cause he's a cool tool guy!


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©1999 Donald A. Bull