Technical Machines (TMS) are moves you can teach your Pokemon that they can't normally learn simply by leveling up. There are fifty different TMs that are found scattered throughout the Kanto Region, some only available by purchase. Unlike HMs, TMs break after a single use, so make sure to use them wisely as some TMs will only only find one of with the game.
Where To Find All TMs
TM01 (Focus Punch): Silph Co. 5th Floor
TM02 (Dragon Claw): Victory Road
TM03 (Water Pulse): Cerulean City Gym
TM04 (Calm Mind): Saffron City Gym
TM05 (Roar): Outside Mt. Moon / Celadon City Department Store
TM06 (Toxic): Fuchsia City Gym
TM07 (Hail): Victory Road
TM08 (Bulk Up): Silph Co. 7th Floor
TM09 (Bullet Seed): Mt. Moon Entrace
TM10 (Hidden Power): Pokemon Pickup Ability
TM11 (Sunny Day): Safari Zone
TM12 (Taunt): Rocket Hideout Basement Floor 2
TM13 (Ice Beam): Celadon City Game Corner
TM14 (Blizzard): Pokemon Mansion
TM15 (Hyper Beam): Celadon City Department Store
TM16 (Light Screen): Celadon City Department Store Roof
TM17 (Protect): Power Plant
TM18 (Rain Dance): Route 15
TM19 (Giga Drain): Celadon City Gym
TM20 (Safeguard): Celadon City Department Store Roof
TM21 (Frustration): Team Rocket Hideout Basement Floor 3
TM22 (Solarbeam): Pokemon Mansion
TM23 (Iron Tail): Celadon City Game Corner
TM24 (Thunderbolt): Celadon City Game Corner
TM25 (Thunder): Power Plant
TM26 (Earthquake): Viridian City Gym
TM27 (Return): Route 12
TM28 (Dig): Cerulean City / Celadon City Department Store
TM29 (Psychic): Saffron City
TM30 (Shadow Ball): Celadon City Game Corner
TM31 (Brick Break): SS Anne / Celadon City Department Store
TM32 (Double Team): Safari Zone
TM33 (Reflect): SS Anne Basement Floor 1 / Celadon City Department Storee Roof
TM34 (Shock Wave): Vermilion City Gym
TM35 (Flamethrower): Celadon City Game Corner
TM36 (Sludge Bomb): Team Rocket Warehouse
TM37 (Sandstorm): Sandstorm Victory Road
TM38 (Fire Blast): Silph Co. 7th Floor Cinnabar Island Gym
TM39 (Rock Tomb): Pewter City Gym / Silph Co. 4th Floor
TM40 (Aerial Ace): Route 9
TM41 (Torment): Silph Co. 4th Floor
TM42 (Facade): Sixth Island Onix Altar
TM43 (Secret Power): Celadon City Department Store / Route 24
TM44 (Rest): Route 9
TM45 (Attract): Route 24 / Celadon City Department Store
TM46 (Thief): Mt. Moon Basement Floor 2
TM47 (Steel Wing): Safari Zone
TM48 (Skill Swap): Route 12
TM49 (Snatch): Team Rocket Hideout Basement Floor 4
TM50 (Overheat): Victory Road