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Patents of Black Inventors
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AIRPLANEDEICER
AUTOMATICGEARSHIFT
BATTERYCONTROL
BETTERLEMONSQUEEZER
BISCUITCUTTER
BREECHLOADINGCANNON
CLOTHESDRIER
ELEVATORSAFETYDOORS
FARMERSALMANAC
FOLDINGCHAIR
FOUNTAINPEN
HYDRAULICJACK
HYDRAULICSHOCK
IMPROVEDHARPOON
LAWNSPRINKLER
MAILCANCELINGMACHINE
PERMANENTWAVEMACHINE
RAILWAYSIGNAL
ROTARYENGINE
SELFLEVELINGTABLE
SELFWRINGINGMOP
TAPEREDGOLFTEE
VELOCIPEDE
| P | E | R | M | A | N | E | N | T | W | A | V | E | M | A | C | H | I | N | E |
| H | U | B | M | N | A | E | E | T | F | L | O | G | D | E | R | E | P | A | T |
| E | W | R | A | I | L | W | A | Y | S | I | G | N | A | L | B | H | X | R | U |
| L | B | E | T | T | E | R | L | E | M | O | N | S | Q | U | E | E | Z | E | R |
| B | I | E | Z | Q | B | B | I | S | C | U | I | T | C | U | T | T | E | R | N |
| A | A | C | Q | T | D | B | A | T | T | E | R | Y | C | O | N | T | R | O | L |
| T | Y | H | U | P | I | M | P | R | O | V | E | D | H | A | R | P | O | O | N |
| G | E | L | V | N | C | A | N | A | M | L | A | S | R | E | M | R | A | F | K |
| N | N | O | D | S | Q | H | Y | D | R | A | U | L | I | C | S | H | O | C | K |
| I | I | A | U | T | O | M | A | T | I | C | G | E | A | R | S | H | I | F | T |
| L | G | D | R | E | C | I | E | D | E | N | A | L | P | R | I | A | G | O | L |
| E | N | I | H | C | A | M | G | N | I | L | E | C | N | A | C | L | I | A | M |
| V | E | N | C | S | H | N | V | E | L | O | C | I | P | E | D | E | R | C | U |
| E | Y | G | R | E | L | K | N | I | R | P | S | N | W | A | L | O | W | T | W |
| L | R | C | L | O | T | H | E | S | D | R | I | E | R | F | A | D | X | L | L |
| F | A | A | S | E | L | F | W | R | I | N | G | I | N | G | M | O | P | L | B |
| L | T | N | Q | F | O | U | N | T | A | I | N | P | E | N | Q | C | Q | I | C |
| E | O | N | E | L | I | V | H | Y | D | R | A | U | L | I | C | J | A | C | K |
| S | R | O | O | D | Y | T | E | F | A | S | R | O | T | A | V | E | L | E | S |
| Z | Z | N | B | T | U | F | O | L | D | I | N | G | C | H | A | I | R | W | U |
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