Crossword puzzle clue "necessity for a patent"

Here are the possible solutions for necessity for a patent clue

Answer
Clue
Relevancy
idea
Clue
Necessity for a patent
Definition
a conception or a plan
alva
Clue
The "A." on many a patent
amazon
Clue
Holder of a patent on one-click buying
Definition
a powerful woman
aol
Clue
Patent seller in 2012 news
bell
Clue
Patent holder for the telephone
Definition
to provide with a ringing device
benz
Clue
Patent-Motorwagen inventor
bern
Clue
City in which Einstein worked in a patent office
charter
Clue
Letters patent
Definition
to lease or hire (a ship, aircraft etc.)

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