Diverse Donald Leslie patenten

 

static_musical_tone_generator_system_28_OKT_1955_US2921494 :



Acoustic_apparatus_26_OCT_1948_US2727583

Acoustic_apparatus_for_producing_tremolo_and_vibratoUS3174579

 

Apparatus_for_chlorination_OF_POOLS_US2820701

Apparatus_for_minimizing_beat_effects_26_JAN_1959_US3049040

 

Apparatus_for_producing_phase_shift_in_electronic_organs_AUG_28_1961_US3159706

COMPLEMENTARY_HARMONIC_SYSTEM_FOR_FLUTE_TYPE_ORGANS_17_MEI_1965_US3432608

 

 

 

 

ross-wired_organ_system_and_rectifier_therefor_25_FEBR_1957_US2949803

 

Derivative_voltage_regulation_circuit__6_MEI_1958_US3005162

 

Electrical_circuit_arrangement_for_complex_wave_generators_29_JAN_1959_US3041910

 

Electronic_musical_instrument_incorporating_rotary_electrostatic_devices_for_producing_celeste_or_chorus_effects_10_MAR_1964_US3372225

 

 

ELECTRONIC_ORGAN_UTILIZING_PROPORTIONAL_FREQUENCY_CHANGES_FOR_HARMONIC_STRUCTURE_1_FEBR_1966_US3458642

 

 

 

Electrostatic_musical_tone_generator_system_28_OKT_1955_US2921494

 

Mercury_slip_ring_assembly_26_DEC_1958_US3014192

 

 

Multiple_sound_channel_tremolo_device_US3100024

 
modeltrain control system

 

MULTIVOICE_ELECTRONIC_ORGAN_10_DEC_1965_US3420941

 

 

Pitch_broadening_apparatus_for_musical_instruments_having_electronic_tone_generators_28_DEC_1958_US3146291

 

 Planetary_acoustic_phase_shift_mechanism_US4017685

 

 

 

Remote_control_for_model_train_system_US3315613

 

 

 

Rotary_electrostatic_speaker_US3058541

Rotary_tremolo_device_having_means_for_mixing_signals_emanating_from_rotary_and_non-rotary_sources_21_DEC_1959_US2995054

 

 

Rotatable_tremulant_sound_producer_3_JAN_1956_US2869667

 

Rotatable_tremulant_sound_producer_US2489653

 

Selective_high_frequency_compression_device_for_speaker_system_4_FEBR_1976_US4084474

 

 

Speaker_system_for_adding_tremolo_US3080786

SPEAKER_SYSTEM_FOR_PULSATO_AND_CELESTE_EFFECTS_28_JULI_1967_US3499114

 

 
 

Step-by-step_electrical_circuit_controller_26_AUG_1950_US2742537

 

 

Stereophonic_system_for_electronic_organs_US4622878

 

 

Swimming_pool_water_level_control_system_6_MEI_1952_US2739939

 

 

System_for_recording_and_reproducing_electric_organ_musicUS3095477

 

 

 

U_Rotatable_tremulant_sound_producer_S2618352



 

 

ELEKTRONIC SPEAKER SYSTEEM _24_SEPT_1948_US2596258

 

 

 

 

MULTIPLE CHANNEL SPEAKER SYSTEM_JULI_1955_US2887000

 

 

Vibrato-oscillator_for_electronic_organs_or_the_like__5_DEC_1958_US2994240