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  1. Home
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  3. Invention Holidays

Invention Holidays

Date Holiday

February 11

National Inventors Day February 11
National Inventors Day February 11

April 6

National Teflon Day April 6
National Teflon Day April 6

April 25

National Telephone Day April 25
National Telephone Day April 25

April 29

National Zipper Day April 29
National Zipper Day April 29

May 27

National Cellophane Tape Day May 27
National Cellophane Tape Day May 27

May 29

National Paperclip Day May 29
National Paperclip Day May 29

May 30

Loomis Day May 30
Loomis Day May 30

June 10

National Ballpoint Pen Day June 10
National Ballpoint Pen Day June 10
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